paper bag machine



3 Sheets Sheet 1.

(No Model.)

W. H. KLINE. PAPER BAG MACHINE.

110,458,559. l'etented Sept. 1,1891.

w: Noam: rsrens co., vnorommo., msnmmcu, n. c4

(No Model.) 3 Sheets-Sheet 2.

W. H. KLINE. PAPER BAG MACHINE.

TNO. 458.559.

(No Model.) 3 Sheets-Sheer,- 3.

W. H. KLINE.

PAPER BAG MACHINE.

N0. 458,559. Patented Sept. 1, 1891.

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UNITED STATES PATENT CEEICE.

WATSON H. CLINE, OF CAMDEN, NET JERSEY, ASSIGNOR OF ONE-HALF TO JAMES E.IIAYS, OF SAME PLACE.

PAPER-EAG MACHINE.

SPECIFICATION forming part of Letters Patent` No. 458,559, datedSeptember 1, 1891.

Application filed September 17, 1890. Serial No. 365,288. (No model.)

To all whom, it #may concern.-

Be it known that I, IVATSON I-I. CLINE, of the city and county ofCamden, and State of New Jersey, have invented an Improvement 5 inPaper-Bag Machines, of which the following is a specification.

My invention has reference to paper-bag machines; and it consists ofcertain improvements which are fully set forth in the followro ingspecilication, and shown in the accompanying drawings, which form a partthereof.

My improvements have particular reference to apparatus for manufacturingsatchelbottoms upon bellows side-fold tubes, whereby the formation ofthe bag may be had in a continuous manner and while the bag-tube is inmotion passing through the machine.

In carrying out myinvention I employsuction for the purpose of openingthe tube for 2o permitting the entrance of the bottom-forming mechanism.The tube after leaving the tube-formingmechanism is received between thetwo endless aprons or bands, from which one end of the tube projects.rlhe tube is conveyed between suction-boxes, through which air-currentsare formed and by which the sides of the paper tube are drawn apart,forming an entrance at one end of the tube. As soon as the tube isopened in this 1nan- 3o ner 'fingers are projected into the interiorthereof and then caused to move away from each other until they reachpoints corresponding to the four corners of the bottom. IVhile in thecustody of these fingers a pair of 3 5 hinged plates or blades arethrust down into the mouth of the tube and by suitable devices caused tolie flat upon it to positively fold the free edges of the paper tubeinto a condition for subsequent proper folding and 4o pasting of thebottom. Immediately after creasing the paper into the proper shape forthe bottom these plates and the fingers are removed automatically, andthen by pasting, creasing, and folding` devices the Satchel-bottom iscompleted upon the bellows side-fold tube.

In the operation of my improvements the aforesaid fingers and plates areconnected to a series of carriages, which are caused to 5o travel with aspeed equal to that of thev conveying-bands, by which the tubes are heldand caused to travel through the machine. While the said carriages andtheir operatingingers and blades or plates are being con@ veyed incontact with the tubes the said parts are automatically manipulated bysuitable cam devices, which cause them to perform their operations atpredetermined moments and with proper relation one with respect to theother. 6o

In the drawings, Figure l is a front elevation of my improved machinewith the de' vice for shaping the bottom removed. Fig. 2 is a plan viewof same, showing the driving mechanism for the device for forming thebottom. Fig. 3 is a perspective view of one of the suctionboxes foropening the tube. Fig. 4 is a front elevation of my improved machinewith each end cut away and a portion of the bottom-forming mechanism re-7o moved. Fig. 5 is a plan view of same, showing the bottom-formingmechanism in position. Fig. (5 is a plan view of the cams for operatingthe forming blades or plates. Fig. 7 is an elevation of same. Fig. S isa front 75 elevation of one of the carriages for carrying the formingplates and iingers. Fig. 9 is` an end view of same with part in section.Fig. l() is an elevation of the forming plate 0r blades and operatingmechanism therefor, 8o with part in section. Fig. Il is an end view ofsame, also with part in section; and Fig. 12 `illustrates a series oftubes in the process of form-ation, and shows the several operations inthe formation of the bottom.

A A are two endless bands passing about the pulleys B, arranged at eachend of the machine. These pulleys may be driven in any suitable manner,so that the two endless bands are caused to travel in contact for a 9oportion ot' their length.

C is the frame of the machine arranged between the bands and wheels B.To thisframc C are secured the 4two boxes D, arranged adjacent to thefeeding ends of the bands and formed substantially as illustrated inFig. 3 that is to say, having the opposing faces made withperforationsD. These boxes connect with an exhaust-pipe d, leading to anexhausier D2. By the operation of the eX- Toe hauster air is drawnthrough the apertures D, causing the faces of the bellows side-fold tubeto be drawn apart upon passing between the said boxes D.

E represents mechanism for forming the bottom of the bag prior to itsbeing folded down and pasted, and this mechanism is arranged in front ofthe boxes D andthe frame C, adjacent to the boxes.

F are two endless bands which travel upon each side of the feeding-bandsA and are guided over rollers f. These bands are caused to travelbymeans of suitable gearing, or ot-herwise, so as to move with a speedequal to that of the feeding-bands A. The object of these bands F is toreceive the folded paper forming the bottom and convey it along with thetube, which is in the custody of the bands A, and at the same speed sohandle it that the paper shall not be dragged out of shape. The bottomof the bag is folded into the shape shown at 5 in Fig. 12 bythe time itreaches the plate Q, andthe tube is then conveyed by the bands Aunderthe plate Q and receive paste from the paste-applying rollers C. As itcontinues its travel it passes under the creasing-disks C2, which creasethe bottom on the lines on which itis to fold. After being creased itpasses under a roller C4, which is kgiven a vertical and lateral motionby means of a frame C5, holding the roller and connected to rotarycranks C, said cranks being rotated by means of gearing c. The gearing cis made eccentric, so that the movement of the roller C4 is notl uniformas to velocity, but is greatest while acting upon the paper tube andslowest in returning to be in a position to act upon the next tube. Themotion of this roller C4 is designed to push over the creased flap, andthen roll it down, at the same time traveling with the moving bag-tube.A similar roller and mechanism is arranged immediately after the,first-mentioned roller, and is designed to roll down the oppositepasted flap. The action of these two rollers upon the bag is illustratedin Nos. 7 and 8 of Fig. 12. No. 6 illustrates the creased paper tubebefore reaching the rollers C4, and after being actuated upon by thecreasingdisks G2. After the bottom is formed, as in No. 8 of Fig. l2,itpasses under the pressureroller C3, and is then completed.

The mechanism E for forming the bottom of the bag ,is clearly shown inSheets 2 and 3. It consists of a series of carriages G, arranged end toend and guided in suitable-guides E3, Figs. 4 and 8. EachV of thecarriages G is preferably formed of three parts hinged together, as isclearly shown in Figs. 5 and 8, for the purpose of more readily turning'the curves. The carriages are held at a given distance apart by means ofscrews g', attached to the carriages, and the heads of which are causedto rest against the next succeeding carriage. Each of the carriages isprovided with a pin or projection G2, which is acted upon by the teethof the propelling-wheels O, which propelling-wheels are secured uponshafts e, geared together by sprocket-wheels E and chain E2. Theseshafts e are driven by gearing B from the main shaft b of the pulleys orwheels B, (see Figs. 1 and 2,) whereby the speed of the carriages G isin exact accordance with the speed of the bands A and F. The guide-railsE3 are grooved and receive guide-rollers g, which are secured tothecarriages, as shown in Fig. 8. In the central portion of the carriagethere is a sliding frame L, projecting' toward the bands A, and to thefree end of this frame L and pivoted at m are two forming .blades orplates'M, Figs. lO and ll. These forming-plates are rotated upon theirbearings by means of a reciproeating shaft L', which is guided withinthe frame L and is normally acted upon by a spring L2, carried in theframe L, for the purpose of bringing the two blades M parallel,

as shown in Fig. ll, in which position they l are ready for entranceinto the opened bagtube. The rear end of the frame L is provided with awheel Z, which works in a camway N, and likewise the rear end of theshaft L is provided with a wheel Z', which works in a grooved camway N.These camways are shown in Figs. 5, 6, and 7 and are designed to movethe blades toward the bands A until within the open tube, and then whileholding' the frame L operate the shaft L to cause the said blades M torotate about their bearings m and open out flat into the positionindicated at 4, Fig. l2.

Upon the end pieces of the carriages G are journaled thereciprocatingand rotating rods G', carrying at their free ends thecranks H, which are formed with long fingers adapted to enter the bottomof the tube when opened by the suction-boxes and by proper manipulationbring the tube to the shape shown at 2 in Fig. l2, and while so heldpermit the blades M to be forced into the open end of the tube, asindicated by numbers 3 and 4 of Fig. l2. The rotary reciprocating shaftsG pass through pinions J, carried upon the carriages, (see Figs. 8 and9,) and these pinions J are rotated in opposite directions, so that thetwo adjacent shafts G', or those upon one end of the carriage, arerotated in opposite directions. The pinionsJ at one end ot' the carriageare connected on adjacent sides to a rack I by suitable teeth, and thisrack is made jointed and is provided with teeth at the other endoperating upon the outer or opposite sides ot' the corresponding pinionsJ ot' the other two reciprocating and rotating shafts G. It will thus beseen that each of the carriagesv G is provided with four shafts G andfour cranks H. The rack I is reciprocated upon the carriage G by meansof the lever-arm K, pivoted at one end to the middlcportion of thecarriage G and provided at the other end with a roller k, which worksupon a cam R, secured to the frame C of the IOO IIO

machine, and on the side adjacent to the bands A, Fig. 4. As thecarriages travel adjacent to the bands A, the cam R causes the lever-armK to move against the action of a spring K and induces a reciprocationof the rack I. This action causes the cranks H to move farther apart,and thereby open the end of the bag-tube into the shape shown at 2 inFig. l2. Asit is necessary for the cranks H to enter the tube, provisionis made for their longitudinal reciprocation through the pinions J and Jwhich provision consists of a camway P, Fig. 5, which acts upon theshafts G" to thrust them forward to project the cranks H into the opentube while in the custody of the suction-boxes D. After being projectedinto the open end of the tube the said shafts are held againstreciprocation while they are rotated in the manner above specified tocause the bag-tube to be opened into a condition to receive theforming-plates M. After the bag has been shaped in th-e manner abovedescribed the curved ends of the camways N and N causes the plate INI tobe Withdrawn'from the tube, and the rear oblique end of the camway Pcauses the cranks or fingers H to be withdrawn from the tube, and theseparts pass around with the carriages into a position to act uponsuccessive tubes. The cranks and crank-fingers H, during the entrance ofthe forming-plates M, are moved and are received through curved slotsm', Fig. l0, into blades M, and while the blades M are entering into anal position within the tube the crank-fingers are withdrawn.Subsequently the blades M are withdrawn and the tube folded in thecondition at 5 in Fig. 12 passes on to the pasting-rolls, and then tothe creasing and folding mechanism. The various rotating and movingparts are mechanically connected together or with proper power machineryof any suitable construction, whereby their movements and speeds have agiven relation with the surface speed of all the parts, and so far astheir movement in the direction of the travel of the tube is concernedsaid movements are equal to the speed of travel of the bands A.

It is quite evident that the details of construction might be more orless modified without in the least departing from the principles of myinvention. Hence I do not limit myself to the details herein set out.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In apaper-bag machine, the combination of conveying devices forconveying a tube of paper, suction-boxes between which the end of thepaper tube passes to open the same, a series of carriages forming anendless train, each provided with forming-fingers for entering the openend of the tube and spreading it into shape to be folded,guides for saidcarriages,power mechanism for causing the carriages and conveyingdevices to travel at the same speeds, and power mechanism for operatingthe forming-lingers during the travel of the carriages.

2. In a paper-bag machine, the combination of conveying devices forconveying a tube of paper, suction-boxes 4between which the end of thepaper tube passes to open the same, a series of carriages forming anendless train, each provided with forming-fingers for entering the openend of the tube and spreading it into shape to be folded, guides forsaid carriages, power mechanism for causing the carriages and conveyingdevices to travelv at the same speeds, power mechanism for operating theforming-fingers during the travel of the carriages, consisting of camdevices for reciprocating the forming-fingers to and from the conveyingdevices, and cam devices for rotating or rocking said forming-fingers.

3. In a paper-bag machine, the combination of conveying4 devicesforconveying a tube of paper, suction-boxes between which the end of thepaper tube passes to open the same, a series of carriages forming anendless train, each provided with forming-fingers for entering the openend of the tube and spreading it into shape to be folded, guides forsaid carriages, power mechanism for causing the carriages and conveyingdevices to travel at the same speeds, power mechanism for operating theforming-fingers during the travel of the carriages, forming blades orplates for entering the open end of the tube, a reciprocating frame, towhich the forming-plates are loosely connected, carried by thecarriages, a reciprocating rod or shaft for moving said plates abouttheir axes to and from each other, and cam mechanism for actuating saidreciprocating frame and shaft during the travel of the carriages.

4. In a paper-bag machine, the combination of conveying devices forconveying a tube of paper, a series of carriages forming an endlesstrain, each provided with forming-fingers for entering the open end ofthe tube and spreadingitinto shape to be folded, guides for saidcarriages, power mechanism for causing the carriages and conveyingdevices to travel at the same speeds, and power mechanism for operatingthe forming-lingers during the travel of the carriages.

5. In a paper-bag machine, the combination of conveying devices forconveying a tube of paper, a series of carriages forming an endlesstrain, each provided with forming-fingers for entering the open end ofthe tube and spreading it into shape to be folded, guides for saidcarriages, power mechanism for causing the carriages and conveyingdevices to travel at the same speeds, power mechanism for operating theforming-fingers during the travel of the carriages, consisting of camdevices for reciprocating the forming-iin- IIO gers to and from theconveying devices, and cam devices for rotating or rocking saidforming-fingers.

G. In a paper-bag machine, the combination of conveying devices forconveying a tube of paper, a series of carriages forming an endlesstrain, each provided with forming-lingers for entering the open end ofthe tube and spreading it into shape to be folded,

Lguides for said carriages, power mechanism for causing the carriagesand conveying devices to travel at the same speeds, power mechanism foroperating the forming-lingers during the travel of the carriages, and anendless apron traveling under folded bottoms and acting as the supportfor the paper arranged at right angles to the body of the tube.

7. In a paper-bag machine, the combination of conveying devices forconveying a tube of paper, a series of carriages forming an endlesstrain, each provided with forming- Iingers for entering the open end ofthe tube and spreading it into shape to be folded, guides for saidcarriages, power mechanism for causing the carriages and conveyingdevices to travel at the samespeeds, power mechanism for operating theforming-fingers during the travel of the carriages, consisting of camdevices for reciprocating the formingfingers to and from the conveyingdevices, and cam devices for rotating or rocking said forming-lingers,andan endless apron traveling under folded bottoms and acting as thesupport for the paper at right angles to the body of the tube.

8. In a paper-bag machine, the combination of endless conveyers forconveying tubes of paper with a series of carriages traveling adjacentto the ends of the tubes, mechanical devices, substantially as set out,carried by said carriages for entering' the tube and folding the endthereof mechanically, power mechanism for operating said carriages at aspeed equal to that of the endless conveyers, pasting devices forapplying paste to the diamond folds of the tube, and folding devices forfolding the .diamond folds over one upon the other to complete thebottom of the bag.

9. .In a paper-bag machine, the combination of endless conveyers forconveying tubes of paper, means in the path of the paper tube foropening its end during its travel with the conveyer, with a series ofcarriages traveling adjacent to the ends of the tubes, mechanicaldevices, substantially as set out, carried by said carriages forentering the open tube and folding the tube to form the bottommechanically, power mechanism for operating said carriages at a speedequal to that of the endless conveyers, pasting devices for applyingpaste to the diamond folds of the tube, and folding devices for foldingthe diamond folds over one upon the other to complete the bot.- tom ofthe bag.

l0. In a paper-bag machine, the combination of a conveyer for a tube, atraveling carriage arranged to travel substantially paral- -lel to saidconveyer, four crank-fingers carried by said carriage and adapted to bereciprocated to and from the conveyer and moved toward or from eachother to shape the bottom of the tube into a rectangular box, and powermechanism to move said conveyer and carriage and operate theforming-fingers.

ll. The combination, in a paper-bag machine, of a conveyer for a tube, atraveling carriage arranged to travel substantially parallel to saidconveyer, four crank-lingers carried by said carriage and adapted to bereciprocated to and from the conveyer and moved toward or from eachother to shape the bottom of the tube into a rectangular box, formingplates or blades arranged between the forming crank-fingers and adaptedto spread out as they are moved toward the conveyers, also carried bythe carriage, and power mechanism to move said conveyer and carriage andoperate the forming-ngers and forming plates or blades.

l2. The combination, in a paper-bag machine, of a conveyer for a tube, atraveling carriage arranged to travel substantially par.- allel to saidconveyer, four crank-fingers carried by said carriage and adapted to bere'- ciprocated to and from the conveyer and moved toward or from eachother to shape the bottom of the tube into a rectangular box, powermechanism to move the carriage and conveyer at equal speeds, andstationary cams for reciprocating said forming-fingers and imparting tothem a lateral movement.

13. The combination, in a paper-bag machine, of a conveyer for a tube, atraveling carriage arranged to travel substantially parallel to saidconveyer, fourcranlciingers carried by said carriage and adapted to bereciprocated to and from the conveyer and moved toward or from eachother to shape the bottom of the tube into a rectangular boX, formingblades or plates arranged between the forming crank-fingers and adaptedto spread out as they are moved toward the conveyers, also carried bythe carriage, and stationary cams for reciprocating the forming bladesor plates to or from the conveyer,

and also open or close the same with refer-- ence to each other.

14C. In a paper-bag machine, the combination of bottom-forming mechanismfor forming and pasting a diamond fold, a conveyer for conveying thefolded tube, mechanism for folding over the diamond fold, consisting ofa surface or part movable transversely to the line of travel of the tubeand also longitudinally therewith, and power mechanism for impartingtothe folded surface a simultaneous transverse and longitudinal motion.

15. In a paper-bag machine, the combination of bottom-forming mechanismfor form` ing and pasting a diamond fold, a conveyer IOC' IIO

for conveying the folded tube, mechanism for folding over the'diamondfold, consisting of a surface 0r part movable transversely to the lineof travel of the tube and also longitudinally therewith, power mechanismfor imparting to the folding surface a simultane ous transverse andlongitudinal motion, and

` eccentric gearing for operating said power mechanism, whereby themotion of the fold

